GetDlgItem() on a dialog in a formview?

I have a CFormView object which contains some controls. In the code for this class I add a dialog to this formview. I have some 3rdparty library that uses the IDs of the items on my formview to move things around. I want it to move the dialog around, but it uses GetDlgItem on the IDs to get ahold of the controls, and this doesn't work on the dialog.

So the simple question, is it not possible to use GetDlgItem() on an actual dialog? I'm guessing not but want to be sure.

I know there is a GetDlgItem() version that takes a pointer to the window, as well as the ID. Also there is the framework version that works on any two windows that are parent/child. But the library I'm calling does not allow for use of either of these versions.

I know there is a GetDlgItem() version that takes a pointer to the window, as well as the ID. Also there is the framework version that works on any two windows that are parent/child. But the library I'm calling does not allow for use of either of these versions.